PVB can be performed in anesthetized patients since there is no concern regarding spinal cord trauma; likewise, coagulopathy or treatment with anticoagulant therapy is not a contraindication since, while there are small vessels in the paravertebral space, even a fairly significant hematoma would not result in cord compression given the extent and compliance of this space. 55 A catheter technique is typically employed for fractured ribs, with the needle insertion at the midpoint of the rib levels.
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